Driving apparatus for high-speed locomotive craft



P. MAGNI DRIVING APPARATUS FOR HIGH SPEED LOGOMOTIVE CRAFT Dec. 21 1926. I 1,611,658

Filed June 10. 1926 //v v m roe P/E 770 MA G/V/ A TTORNE Y5 Patented ec. ,,21, 1926.-

rmrno MAGNI, or ennomrramz.

DRIVING APPARATUS FOR HIGH-SPEED LOCOMOTIVE CRAFT;

Application filed June 10, 1926, Serial No. 115,148, and in Great Britain July 22, 1925. Q

My present invention has for its object to rovide an improved driving apparatus for aerial and other craft comprising a suitable air-cooled internal combustion engipc designed for driving a propeller screw, it

set of chests or casings, suitable deviators and special ventilators as \Vlll be described yhereafter, for the purpoze of rendering the v air-cooled internal combustion engine more especially adapted for air craft and general- 1y for high speed locomotion by greatly" diminishing the resistance to penetration of the craft (aeroplane, hydroplane, or motor driven by aerial propellers) into its sur- 5 rounding fluid, at the same'time providing the motor cylinders with a cooling air current of considerable speed and eflicienoy.

By way of example I have illustrated my invention= in the accompanying drawing which shows a longitudinal section of my improved driving apparatus applied to the body of an aeroplaneya is the aeroplane body. Z) the air-cooled (starlike) engine, 0 the propeller screw, d the chest or casing in the place reserved for the engine, 0 the outlet apertures -tor the'cooling air, 7 the chest of casing in the place where the propeller screw is mounted (i. e.: covering the drum of therotating screw), 9 the ogival or penetrating casing provided at its vertex with a hole h and forming the head of the penetrating system consisting of the body of the aeroplane with the casings, z a deviat'or placed in front of the hub of the propeller screw and designed for leading the air absorbed by the ventilators towards the cylinders andlthemost heated parts of the engine, Z: the venti- -lators mounted on the drum of the propeller I screw androtating with the latter, Z a diagram of the air current in which the craft is emersed, which for the sake of clearness has been omitted in the lower half of the sec- ,tional View, m an annular outlet tube for 4 p the exhaust gases, so placed as to be swept by-t-he internal or external air current, and

n a movable window capable of increasingor diminishing or even closing completely the annular aperture 6. I

Such driving apparatus systemas ,de-'

scribed may be of course applied toany body or carlin of whateve; section, j

The internal combustion engine designed for driving the craft, as is seen, from the above, is partially or totallye'nclosed in an ogival chest or casing divided into a number of segments or rings some of which are fixed to the body of the aeroplane and some to the propeller screw with which latterthey rotate.

The outline of the said chest gradually becomes ogival, starting from a hole in the vertexof the air penetrating ogive and being continued (possibly withoutinterruption up to the top of the body, there forming an an nular outlet conduit for the ;air current. This conduit is continuous. or interrupted for certain lengths according to the practical possibilities and provided with a movable window controlled by the pilot during the flight, permitting him to increase or diminish the final section of said outlet and conseair compelled to sweep, the motor.

The air is compelled to penetrate and pas:

into theinterior ot-the head formed by said chest through the comparatively small front hole by one or more ventilators fixed to the drum of the propeller screw and led by suitable deviators to sweep past the motor cylindeisbefore leaving the apertures. Y Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed,-Ideclare that what I claim is:

Improvements in driving apparatus for high speed locomotive craft comprising an internal combustion engine partially or totally encloseflin an ogival chest divided into a number vof segments, some of which fixed to the body of the aeroplane and some tothe propeller-screw with which latter they ro tate, the outline of said chest gradually becoming ogival, starting from a hole in the vertex of the air penetrating ogive and being continued,postibly without interruption, up to the top of the body there forming an annular outlet conduit-for the air current, a ventilator fixed to the drum of the propeller screw to compel air to penet'rate'and pass through the front hole, deviators'to lead air past the motor cylinders, a moveable window I controllable by the pilot "during the flight to regulate the quantityof cooling air conipelled to sweep the motor.

' In" testimony whereof I have hereunto signed my'pame.

quently to regulate the quantity of cooling Frame MAGNL' 

